Fuses & Circuit Breakers

Although they work in different ways, fuses and circuit breakers broadly have the same purpose; to protect electrical appliances and electrical circuits from short circuits, and excessive current (called overcurrent or overload).

Fuses

Fuses are relatively low cost electrical safety devices. If too much current enters the circuit, the fuse will burn out (sometimes called blowing out). When the fuse blows out it breaks the circuit. This protects the attached devices and allows you to touch devices without being electrocuted. When the fuse blows, it must be replaced before using the device or appliance again.

Circuit breakers

Circuit breakers work in a similar way to fuses, but they are resettable. Once a fault is detected (this is typically a short circuit or an excessive amount of current flowing through the circuit) the circuit breaker will interrupt the flow of current. When the circuit breaker trips, it's simply a case of flicking a switch to reset the circuit breaker. As soon as you've reset the circuit breaker, it is ready to use again.

Circuit Breakers
Circuit Breakers
Earth & Lightning Protection
Earth & Lightning Protection
Fuse Holders & Accessories
Fuse Holders & Accessories
Fuses
Fuses

46578 Products showing for Fuses & Circuit Breakers

125 / 999+
  • RS Stock No. 266-1299
  • Mfr. Part No. 406288
Each
MYR2,155.26
Better World
  • RS Stock No. 248-3723
  • Mfr. Part No. A9Z64425
Each
MYR4,394.76
  • RS Stock No. 728-8676
  • Mfr. Part No. 1140-F111-P1M1-4A
Each
MYR78.21
Better World
  • RS Stock No. 211-2403
  • Mfr. Part No. M9F23320
Each
MYR426.12
  • RS Stock No. 123-610
  • Mfr. Part No. 170441 FRCMM-100/2/01-S/A
Each
MYR4,160.70
  • RS Stock No. 231-9669
  • Mfr. Part No. 2CDS251001R0824 S201-C100 6kA
1 Box of 1
MYR366.07
Better World
  • RS Stock No. 734-9150
  • Mfr. Part No. A9F77316
Each
MYR974.83
  • RS Stock No. 186-3488
  • Mfr. Part No. 470663
Each
MYR188.10
  • RS Stock No. 270-7963
  • Mfr. Part No. 3413.0002.11
Each
MYR12.90
  • RS Stock No. 769-0032
  • Mfr. Part No. 0313002.HXP
Each (In a Pack of 10)
MYR4.062
  • RS Stock No. 787-4417
  • Mfr. Part No. 0298250.ZXEH
Each
MYR30.26
Better World
  • RS Stock No. 772-1530
  • Mfr. Part No. A9N61531
Each
MYR745.97
Better World
  • RS Stock No. 776-3064
  • Mfr. Part No. A9N18365
Each
MYR532.93
  • RS Stock No. 230-2994
  • Mfr. Part No. 3NE1227-4D
Each (In a Pack of 2)
MYR999.94
  • RS Stock No. 219-9174
  • Mfr. Part No. M9U21104
Each
MYR721.28
  • RS Stock No. 236-6856
  • Mfr. Part No. 1SDA069057R1 RHE_B XT2-XT4 F/P BASE RH
Each
MYR367.70
  • RS Stock No. 284-2372
Each
MYR334.73
  • RS Stock No. 541-4741
  • Mfr. Part No. 0215010.MXP
Each (In a Pack of 10)
MYR5.641
  • RS Stock No. 212-2118
  • Mfr. Part No. 3130-F110-P7T1-W14QR7-2A
Each
MYR214.22
  • RS Stock No. 153-2961
  • Mfr. Part No. 7TCA083210R0004 CR105
Each (In a Pack of 10)
MYR70.235
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